US9825331B2 - Fluorinated derivatives of meldrum's acid, a method for the preparation of the same, and their use as a solvent additive - Google Patents
Fluorinated derivatives of meldrum's acid, a method for the preparation of the same, and their use as a solvent additive Download PDFInfo
- Publication number
- US9825331B2 US9825331B2 US14/360,682 US201214360682A US9825331B2 US 9825331 B2 US9825331 B2 US 9825331B2 US 201214360682 A US201214360682 A US 201214360682A US 9825331 B2 US9825331 B2 US 9825331B2
- Authority
- US
- United States
- Prior art keywords
- fluorine
- carbonate
- formula
- alkyl group
- linear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
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- 239000002904 solvent Substances 0.000 title claims abstract description 44
- GXHFUVWIGNLZSC-UHFFFAOYSA-N meldrum's acid Chemical class CC1(C)OC(=O)CC(=O)O1 GXHFUVWIGNLZSC-UHFFFAOYSA-N 0.000 title abstract description 9
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000000654 additive Substances 0.000 title description 30
- 230000000996 additive effect Effects 0.000 title description 14
- 238000000034 method Methods 0.000 title description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 55
- 239000003792 electrolyte Substances 0.000 claims abstract description 43
- 239000000203 mixture Substances 0.000 claims abstract description 41
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 24
- 229910052731 fluorine Inorganic materials 0.000 claims description 46
- 239000011737 fluorine Substances 0.000 claims description 41
- 125000001153 fluoro group Chemical group F* 0.000 claims description 31
- 125000000217 alkyl group Chemical group 0.000 claims description 28
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 26
- 150000003839 salts Chemical class 0.000 claims description 24
- 229910052739 hydrogen Inorganic materials 0.000 claims description 22
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 21
- 239000001257 hydrogen Substances 0.000 claims description 20
- 125000005843 halogen group Chemical group 0.000 claims description 16
- -1 monofluoromethyl Chemical group 0.000 claims description 16
- 229910052736 halogen Inorganic materials 0.000 claims description 14
- 150000002367 halogens Chemical class 0.000 claims description 14
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 11
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 9
- 125000001424 substituent group Chemical group 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 claims description 4
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 4
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 6
- 239000005864 Sulphur Substances 0.000 abstract 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 16
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 14
- 239000007858 starting material Substances 0.000 description 13
- RBCXEDQEZDUMHD-UHFFFAOYSA-N 2-fluoropropanedioic acid Chemical compound OC(=O)C(F)C(O)=O RBCXEDQEZDUMHD-UHFFFAOYSA-N 0.000 description 11
- 125000004432 carbon atom Chemical group C* 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- OOYYGNJJGDSKFX-UHFFFAOYSA-N 2,2,5-trifluoro-1,3-dioxane-4,6-dione Chemical compound FC1C(=O)OC(F)(F)OC1=O OOYYGNJJGDSKFX-UHFFFAOYSA-N 0.000 description 8
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 8
- 229910012265 LiPO2F2 Inorganic materials 0.000 description 7
- 0 [1*]C1([2*])C(=O)OC([3*])([4*])OC1=O Chemical compound [1*]C1([2*])C(=O)OC([3*])([4*])OC1=O 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 7
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 150000002576 ketones Chemical class 0.000 description 6
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 5
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 5
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 5
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 5
- 239000012025 fluorinating agent Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 229910001290 LiPF6 Inorganic materials 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 238000006482 condensation reaction Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 125000000753 cycloalkyl group Chemical group 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 125000004433 nitrogen atom Chemical group N* 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- DWFDQVMFSLLMPE-UHFFFAOYSA-N (2-fluorophenyl)-phenylmethanone Chemical compound FC1=CC=CC=C1C(=O)C1=CC=CC=C1 DWFDQVMFSLLMPE-UHFFFAOYSA-N 0.000 description 3
- 125000004209 (C1-C8) alkyl group Chemical group 0.000 description 3
- 125000006552 (C3-C8) cycloalkyl group Chemical group 0.000 description 3
- GETTZEONDQJALK-UHFFFAOYSA-N (trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=CC=C1 GETTZEONDQJALK-UHFFFAOYSA-N 0.000 description 3
- QRJPDKWBAWCFLY-UHFFFAOYSA-N 5-fluoro-2,2-bis(trifluoromethyl)-1,3-dioxane-4,6-dione Chemical compound FC1C(=O)OC(C(F)(F)F)(C(F)(F)F)OC1=O QRJPDKWBAWCFLY-UHFFFAOYSA-N 0.000 description 3
- XLNMSDVPHBAUKN-UHFFFAOYSA-N 5-fluoro-2,2-dimethyl-1,3-dioxane-4,6-dione Chemical compound CC1(C)OC(=O)C(F)C(=O)O1 XLNMSDVPHBAUKN-UHFFFAOYSA-N 0.000 description 3
- VCYFFUQTWAJOJY-UHFFFAOYSA-N 5-fluoro-2-methyl-2-(trifluoromethyl)-1,3-dioxane-4,6-dione Chemical compound FC(F)(F)C1(C)OC(=O)C(F)C(=O)O1 VCYFFUQTWAJOJY-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 125000002947 alkylene group Chemical group 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 150000002170 ethers Chemical class 0.000 description 3
- 125000000468 ketone group Chemical group 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 125000004430 oxygen atom Chemical group O* 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- BWQOPMJTQPWHOZ-UHFFFAOYSA-N (2,3-difluorophenyl)-phenylmethanone Chemical compound FC1=CC=CC(C(=O)C=2C=CC=CC=2)=C1F BWQOPMJTQPWHOZ-UHFFFAOYSA-N 0.000 description 2
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 description 2
- BKJABVBFDOILQH-UHFFFAOYSA-N 1,3-dioxane-2,4,6-trione Chemical compound O=C1CC(=O)OC(=O)O1 BKJABVBFDOILQH-UHFFFAOYSA-N 0.000 description 2
- 125000004206 2,2,2-trifluoroethyl group Chemical group [H]C([H])(*)C(F)(F)F 0.000 description 2
- UMBWWNIKAJSCLR-UHFFFAOYSA-N 2,2-bis(trifluoromethyl)-1,3-dioxane-4,6-dione Chemical compound FC(F)(F)C1(C(F)(F)F)OC(=O)CC(=O)O1 UMBWWNIKAJSCLR-UHFFFAOYSA-N 0.000 description 2
- OLYKCPDTXVZOQF-UHFFFAOYSA-N 2,2-difluoro-1-phenylethanone Chemical compound FC(F)C(=O)C1=CC=CC=C1 OLYKCPDTXVZOQF-UHFFFAOYSA-N 0.000 description 2
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 2
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 description 2
- YOSFSHDCKQJNPJ-UHFFFAOYSA-N 5-fluoro-1,3-dioxane-2,4,6-trione Chemical compound FC1C(=O)OC(=O)OC1=O YOSFSHDCKQJNPJ-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- HXELGNKCCDGMMN-UHFFFAOYSA-N [F].[Cl] Chemical group [F].[Cl] HXELGNKCCDGMMN-UHFFFAOYSA-N 0.000 description 2
- TYTQASGLRSROPV-UHFFFAOYSA-N [H]C1(F)C(=O)OC(C)(C(F)(F)F)OC1=O.[H]C1(F)C(=O)OC(C)(C(F)(F)F)OC1=O.[H]C1(F)C(=O)OC(C)(C)OC1=O.[H]C1(F)C(=O)OC(F)(F)OC1=O Chemical compound [H]C1(F)C(=O)OC(C)(C(F)(F)F)OC1=O.[H]C1(F)C(=O)OC(C)(C(F)(F)F)OC1=O.[H]C1(F)C(=O)OC(C)(C)OC1=O.[H]C1(F)C(=O)OC(F)(F)OC1=O TYTQASGLRSROPV-UHFFFAOYSA-N 0.000 description 2
- 150000003869 acetamides Chemical class 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 150000005676 cyclic carbonates Chemical class 0.000 description 2
- CSJLBAMHHLJAAS-UHFFFAOYSA-N diethylaminosulfur trifluoride Chemical compound CCN(CC)S(F)(F)F CSJLBAMHHLJAAS-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229940021013 electrolyte solution Drugs 0.000 description 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 2
- 238000003682 fluorination reaction Methods 0.000 description 2
- 150000003948 formamides Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 2
- VDVLPSWVDYJFRW-UHFFFAOYSA-N lithium;bis(fluorosulfonyl)azanide Chemical compound [Li+].FS(=O)(=O)[N-]S(F)(=O)=O VDVLPSWVDYJFRW-UHFFFAOYSA-N 0.000 description 2
- CXHHBNMLPJOKQD-UHFFFAOYSA-M methyl carbonate Chemical compound COC([O-])=O CXHHBNMLPJOKQD-UHFFFAOYSA-M 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- 150000004812 organic fluorine compounds Chemical class 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- SSOLNOMRVKKSON-UHFFFAOYSA-N proguanil Chemical compound CC(C)\N=C(/N)N=C(N)NC1=CC=C(Cl)C=C1 SSOLNOMRVKKSON-UHFFFAOYSA-N 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- JGKUAQBKVQNKMP-UHFFFAOYSA-N (1,3-dimethylimidazol-2-ylidene)-dimethylazanium Chemical compound CN(C)C=1N(C)C=C[N+]=1C JGKUAQBKVQNKMP-UHFFFAOYSA-N 0.000 description 1
- SLARRTIBTVWHPF-UHFFFAOYSA-N (2-acetyloxy-5-fluorophenyl)methyl acetate Chemical compound CC(=O)OCC1=CC(F)=CC=C1OC(C)=O SLARRTIBTVWHPF-UHFFFAOYSA-N 0.000 description 1
- PUNIIEHHUHGISF-UHFFFAOYSA-N (2-fluorophenyl) acetate Chemical compound CC(=O)OC1=CC=CC=C1F PUNIIEHHUHGISF-UHFFFAOYSA-N 0.000 description 1
- IAWZWMGUTKRLQB-UHFFFAOYSA-N (3-fluorophenyl) acetate Chemical compound CC(=O)OC1=CC=CC(F)=C1 IAWZWMGUTKRLQB-UHFFFAOYSA-N 0.000 description 1
- YXGCBJYOUJQVJP-SNAWJCMRSA-N (3e)-5,6-difluoroocta-3,7-dien-2-one Chemical compound CC(=O)\C=C\C(F)C(F)C=C YXGCBJYOUJQVJP-SNAWJCMRSA-N 0.000 description 1
- ZNOREXRHKZXVPC-UHFFFAOYSA-N (4-fluorophenyl) acetate Chemical compound CC(=O)OC1=CC=C(F)C=C1 ZNOREXRHKZXVPC-UHFFFAOYSA-N 0.000 description 1
- OGTSHGYHILFRHD-UHFFFAOYSA-N (4-fluorophenyl)-phenylmethanone Chemical compound C1=CC(F)=CC=C1C(=O)C1=CC=CC=C1 OGTSHGYHILFRHD-UHFFFAOYSA-N 0.000 description 1
- XQEUNZFMQTXENN-OWOJBTEDSA-N (E)-2,3-bis(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctyl)but-2-enedioic acid Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)/C(C(=O)O)=C(\C(O)=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F XQEUNZFMQTXENN-OWOJBTEDSA-N 0.000 description 1
- LSFYELMZVHZKKQ-UPHRSURJSA-N (Z)-2,3-bis(1,1,1,3,3,3-hexafluoropropan-2-yl)but-2-enedioic acid Chemical compound FC(F)(F)C(C(F)(F)F)/C(C(=O)O)=C(\C(C(F)(F)F)C(F)(F)F)C(O)=O LSFYELMZVHZKKQ-UPHRSURJSA-N 0.000 description 1
- SFEKJPRYZMFTFH-OWOJBTEDSA-N (e)-1,1,1,2,2,3,3,4,4,5,5,6,6,9,9,10,10,11,11,12,12,13,13,14,14,14-hexacosafluorotetradec-7-ene Chemical group FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)\C=C\C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SFEKJPRYZMFTFH-OWOJBTEDSA-N 0.000 description 1
- OLXJWIOOAUUDHX-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-4-prop-2-enoxybutane Chemical compound FC(F)(F)C(F)(F)C(F)(F)COCC=C OLXJWIOOAUUDHX-UHFFFAOYSA-N 0.000 description 1
- GRVMOMUDALILLH-UHFFFAOYSA-N 1,1,1,2,4,5,5,5-octafluoro-2,4-bis(trifluoromethyl)pentan-3-one Chemical compound FC(F)(F)C(F)(C(F)(F)F)C(=O)C(F)(C(F)(F)F)C(F)(F)F GRVMOMUDALILLH-UHFFFAOYSA-N 0.000 description 1
- FHUDAMLDXFJHJE-UHFFFAOYSA-N 1,1,1-trifluoropropan-2-one Chemical compound CC(=O)C(F)(F)F FHUDAMLDXFJHJE-UHFFFAOYSA-N 0.000 description 1
- MPMWFMRRLDGGDN-UHFFFAOYSA-N 1,2,4,5-tetrafluoro-3,6-bis[(2-methylpropan-2-yl)oxy]benzene Chemical compound CC(C)(C)OC1=C(F)C(F)=C(OC(C)(C)C)C(F)=C1F MPMWFMRRLDGGDN-UHFFFAOYSA-N 0.000 description 1
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- CQPIMIJDRWLFGV-UHFFFAOYSA-N 1,3-difluoro-5-prop-2-enylbenzene Chemical compound FC1=CC(F)=CC(CC=C)=C1 CQPIMIJDRWLFGV-UHFFFAOYSA-N 0.000 description 1
- SYMFAUQESLPCRO-UHFFFAOYSA-N 1,4-bis(1,1,2,2-tetrafluoroethoxy)benzene Chemical compound FC(F)C(F)(F)OC1=CC=C(OC(F)(F)C(F)F)C=C1 SYMFAUQESLPCRO-UHFFFAOYSA-N 0.000 description 1
- XCSRDHYEONHVMI-UHFFFAOYSA-N 1-(2,2,3,3-tetrafluoro-1,4-benzodioxin-6-yl)ethanone Chemical compound O1C(F)(F)C(F)(F)OC2=CC(C(=O)C)=CC=C21 XCSRDHYEONHVMI-UHFFFAOYSA-N 0.000 description 1
- FXQWZAIGWRETAQ-UHFFFAOYSA-N 1-(2,2-difluoro-1,3-benzodioxol-4-yl)ethanone Chemical compound CC(=O)C1=CC=CC2=C1OC(F)(F)O2 FXQWZAIGWRETAQ-UHFFFAOYSA-N 0.000 description 1
- LQASUDVYVOFKNK-UHFFFAOYSA-N 1-(3-fluoro-4-methoxyphenyl)ethanone Chemical compound COC1=CC=C(C(C)=O)C=C1F LQASUDVYVOFKNK-UHFFFAOYSA-N 0.000 description 1
- OWEIAGSMFHSSES-UHFFFAOYSA-N 1-[1,1,1,3,3,3-hexafluoro-2-(4-methylphenyl)propan-2-yl]-4-methylbenzene Chemical compound C1=CC(C)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(C)C=C1 OWEIAGSMFHSSES-UHFFFAOYSA-N 0.000 description 1
- ZXYHOZFIJPZMTE-UHFFFAOYSA-N 1-[3-phenyl-5-(trifluoromethyl)pyrazol-1-yl]ethanone Chemical compound C1=C(C(F)(F)F)N(C(=O)C)N=C1C1=CC=CC=C1 ZXYHOZFIJPZMTE-UHFFFAOYSA-N 0.000 description 1
- ZXIQZWXVSBJPTC-UHFFFAOYSA-N 1-[4-(2-fluorophenyl)phenyl]propan-1-one Chemical compound C1=CC(C(=O)CC)=CC=C1C1=CC=CC=C1F ZXIQZWXVSBJPTC-UHFFFAOYSA-N 0.000 description 1
- GIGWRVLNOYPOIT-UHFFFAOYSA-N 1-[4-(difluoromethoxy)phenyl]ethanone Chemical compound CC(=O)C1=CC=C(OC(F)F)C=C1 GIGWRVLNOYPOIT-UHFFFAOYSA-N 0.000 description 1
- AQFXIWDRLHRFIC-UHFFFAOYSA-N 1-[5-phenyl-3-(trifluoromethyl)pyrazol-1-yl]ethanone Chemical compound CC(=O)N1N=C(C(F)(F)F)C=C1C1=CC=CC=C1 AQFXIWDRLHRFIC-UHFFFAOYSA-N 0.000 description 1
- AODSTUBSNYVSSL-UHFFFAOYSA-N 1-fluoro-4-phenoxybenzene Chemical compound C1=CC(F)=CC=C1OC1=CC=CC=C1 AODSTUBSNYVSSL-UHFFFAOYSA-N 0.000 description 1
- NRKYWOKHZRQRJR-UHFFFAOYSA-N 2,2,2-trifluoroacetamide Chemical class NC(=O)C(F)(F)F NRKYWOKHZRQRJR-UHFFFAOYSA-N 0.000 description 1
- DGCOGZQDAXUUBY-UHFFFAOYSA-N 2,2-difluoro-1,3-benzodioxole Chemical compound C1=CC=C2OC(F)(F)OC2=C1 DGCOGZQDAXUUBY-UHFFFAOYSA-N 0.000 description 1
- NIBFJPXGNVPNHK-UHFFFAOYSA-N 2,2-difluoro-1,3-benzodioxole-4-carbaldehyde Chemical compound C1=CC(C=O)=C2OC(F)(F)OC2=C1 NIBFJPXGNVPNHK-UHFFFAOYSA-N 0.000 description 1
- LRTRRTZWJXMMGS-UHFFFAOYSA-N 2,2-difluoroethyl ethenyl carbonate Chemical compound FC(F)COC(=O)OC=C LRTRRTZWJXMMGS-UHFFFAOYSA-N 0.000 description 1
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- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000005677 organic carbonates Chemical class 0.000 description 1
- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical compound CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Chemical compound [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- 229960004624 perflexane Drugs 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- ZJIJAJXFLBMLCK-UHFFFAOYSA-N perfluorohexane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F ZJIJAJXFLBMLCK-UHFFFAOYSA-N 0.000 description 1
- NGGUSKNBBASYGO-UHFFFAOYSA-N phenyl 2,2,2-trifluoroethyl carbonate Chemical compound FC(F)(F)COC(=O)OC1=CC=CC=C1 NGGUSKNBBASYGO-UHFFFAOYSA-N 0.000 description 1
- OHTYZZYAMUVKQS-UHFFFAOYSA-N phenyl-[4-(trifluoromethyl)phenyl]methanone Chemical compound C1=CC(C(F)(F)F)=CC=C1C(=O)C1=CC=CC=C1 OHTYZZYAMUVKQS-UHFFFAOYSA-N 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 150000003008 phosphonic acid esters Chemical class 0.000 description 1
- VBQCHPIMZGQLAZ-UHFFFAOYSA-N phosphorane Chemical class [PH5] VBQCHPIMZGQLAZ-UHFFFAOYSA-N 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 238000004237 preparative chromatography Methods 0.000 description 1
- 150000004040 pyrrolidinones Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical class O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- LSJNBGSOIVSBBR-UHFFFAOYSA-N thionyl fluoride Chemical compound FS(F)=O LSJNBGSOIVSBBR-UHFFFAOYSA-N 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 125000005270 trialkylamine group Chemical group 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0567—Liquid materials characterised by the additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
- C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/08—Hybrid cells; Manufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
- H01M2300/0034—Fluorinated solvents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y02E60/128—
Definitions
- the invention concerns certain fluorinated derivatives of Meldrum's acid, methods for their preparation and their use as an additive for Li ion batteries.
- Li ion batteries, Li air batteries and Li sulfur batteries are well-known rechargeable means for storing electric energy.
- the advantage of this type of batteries is, for example, a high energy density, and they have no memory effect.
- Li ion batteries comprise an anode, a cathode and an electrolyte composition containing a solvent, an conductive salt and often additives.
- the solvent is an aprotic organic solvent which serves to dissolve the conductive salt. See, for example, WO 2007/042471 which provides information concerning suitable solvents.
- Suitable conducting salts are known in the art. LiPF 6 is the preferred conducting salt.
- Other conducting salts are also suitable as constituent of the electrolyte solutions of the present invention, for example, e.g. lithium bisoxalatoborate (LiBOB), lithium bis(fluorosulfonyl)imide (LiFSI), lithium bis(trifluorsulfonyl)imide (LiTFSI) or LiBF 4 .
- Additives improve the properties of the Li ion batteries, e.g. the life of the battery or to reduce the flammability.
- LiPO 2 F 2 is applicable as additive.
- Fluorinated organic compounds for example, fluorinated cyclic carbonates, improve the life of the battery and reduce the flammability of the solvent.
- Object of the present invention is to provide further additives for Li ion batteries. This object, and other objects, are achieved by the invention as outlined in the description and the claims.
- One aspect of the present invention concerns compounds which are derivatives of Meldrum's acid and are represented by formula (I):
- R1 and R2 independently denote hydrogen, halogen, or linear or branched alkyl group optionally substituted by one or more halogen atoms; and wherein R3 and R4 independently denote hydrogen, halogen, or linear or branched alkyl group optionally substituted by one or more halogen atom; provided that at least one of the R1 to R4 is fluorine or fluorinated substituent.
- R1 is fluorine
- R2 is hydrogen or fluorine.
- R1 is fluorine and R2 is hydrogen.
- R3 and R4 are the same or different and are independently selected from the group consisting of fluorine, methyl, ethyl, and methyl and ethyl substituted by at least one fluorine atom. More preferably, R3 and R4 are independently selected from the group consisting of fluorine, methyl, mono fluoromethyl, difluoromethyl and trifluoromethyl.
- Especially preferred compounds are those of formula (I-1), (I-2), (I-3) or (I-4).
- Another aspect of the present invention is to provide a method for the manufacture of the compounds of formula (I).
- the manufacture can be performed according to several embodiments.
- the compounds may be prepared analogously to the manufacture of Meldrum's acid from a compound with a keto group and malonic acid.
- Suitable starting compounds having a keto group are especially acetone, methyl ethyl ketone and diethyl ketone; and malonic acid or their halogenated or fluorinated derivatives.
- At least one starting compound contains at least one fluorine atom as a substituent; optionally, but this is not preferred, at least one of the starting compounds may be substituted by a halogen atom.
- At least one starting compound is substituted by at least one halogen atom which is not fluorine; after the condensation reaction of the starting compounds, the halogen atom, especially chlorine, is substituted by fluorine, e.g. in well-known chlorine-fluorine exchange reactions with fluorinating agents like metal fluorides, e.g. CsF or KF, or HF adducts of amines, e.g. HF adducts of trialkylamines or HF adducts of aromatic amines like pyridine.
- fluorinating agents like metal fluorides, e.g. CsF or KF
- fluorinating agents like metal fluorides, e.g. CsF or KF
- HF adducts of amines e.g. HF adducts of trialkylamines or HF adducts of aromatic amines like pyridine.
- non-fluorinated starting compounds are applied, and the resulting Meldrum acid or Meldrum acid derivative are post fluorinated e.g. with electrophilic fluorinating agents, e.g. N-fluorosulfonamides to substitute F for H at the C(O)—CH 2 —C(O) group.
- electrophilic fluorinating agents e.g. N-fluorosulfonamides
- H atoms at the alkyl group or alkyl groups of the O—C(R1R2)-O function can be substituted by F using via electrochemical fluorination or by a reaction with elemental F 2 , preferably at low temperatures in an inert solvent, e.g. perfluorinated carbon compounds, and using F 2 diluted with inert gas such as N 2 .
- This embodiment is especially suitable for compounds of formula (I) in which R1 is F and R2 is H or F and R3 and R4 are H or F.
- the first embodiment is preferred and will now be explained in detail.
- R3 and R4 are methyl, ethyl, or methyl or ethyl substituted by at least one F atom
- compounds of formula (II), R3-C(O)—R4 are applied as starting material.
- R3 and R4 are methyl or ethyl groups at least one of which is substituted by at least one F atom.
- These compounds can be manufactured from acetone, butanone or pentanone, optionally substituted by one or more fluorine atoms by electrochemical fluorination as is described in U.S. Pat. No. 4,003,807.
- Partially and polyfluorinated ketones can also be manufactured from ⁇ -ketoester compounds by decarboxylation initiated by acids, for example, by sulfonic acids, mineral acids or trifluoroacetic acid, as described in U.S. Pat. No. 5,481,029.
- Compounds which have a C—(O)—CFH—C(O) group or a C—(O)—CF 2 —C(O) group in the ring can be prepared by applying monofluorinated or difluorinated malonic acid as a starting material.
- Monofluoromalonic acid and difluoromalonic acid can be prepared from the respective chlorosubstituted malonic acid ester and fluorinating agents, e.g. using the HF adducts of pyridine, diazabicyclononene (“DBN”) or diazabicycloundecene (“DBU”) with subsequent saponification of the ester groups.
- Another aspect of the present invention concerns the manufacture of the compounds of formula (I).
- the starting compounds are esters. They can be hydrolyzed to form the respective acid by basic or acidic hydrolysis.
- the hydrolysis can be performed as described in DE Offenlegungsschrift 4120704, e.g. from the dimethylester and NaOH in water and subsequent contact with an ion exchange resin, e.g. Lewatit S 100.
- This step is followed by a condensation reaction which may be catalyzed by sulfuric acid.
- the condensation reaction can be performed in analogy of the preparation of Meldrum's acid by David Davidson and Sidney A. Bernhard in J. Am. Chem. Soc. 70 (1948), pages 3426 to 3428, and especially on page 3428, left column.
- dehydrating agents for example, acetic acid anhydride can be applied to shift the equilibrium of the condensation reaction.
- the following reaction equation indicates a way how to prepare 2,2,5-trifluoro-1,3-dioxane-4,6-dione.
- the first step provides fluoromalonic acid from the respective diester by hydrolysis.
- 5-fluoro-1,3-dioxane-2,4,6-trione is produced as intermediate compound by reaction of fluoromalonic acid and C(O)Cl 2 .
- the last step provides for the desired compound 2,2,5-trifluoro-1,3-dioxane-4,6-dione by transforming the keto group into a CF 2 group by reacting the intermediate compound with SF 4 . This can be performed as described in U.S. Pat. No. 2,859,245.
- SF 4 which is a gas
- a derivative of SF4 can be applied, especially R 2 NSF 3 wherein R is an alkyl group, especially with 1 to 3 C atoms.
- a representative compounds is diethylamino-SF 3 (“DAST”).
- DAST diethylamino-SF 3
- Another fluorinating agent of this type is Deoxo-Fluor® which has the formula (CH 3 OCH 2 CH 2 ) 2 NSF 3 and is available from Aldrich.
- the intermediate 5-fluoro-1,3-dioxane-2,4,6-trione can be reacted with hydrogen to reduce the 5-keto group into a 5-hydroxy group which then can be reacted with SF 4 to form the respective C5-mono fluorinated bridging group.
- the compounds can be isolated by methods known in the art, for example, by distillation, chromatography, extraction and the like.
- Another aspect of the present invention concerns the use of the compounds of formula (I)
- R1 to R4 independently denote hydrogen, halogen, or linear or branched alkyl group optionally substituted by one or more halogen atoms; provided that at least one of the R1 to R4 is fluorine or fluorinated substituent, as a solvent or, preferably, as an additive solvents or electrolyte compositions useful for rechargeable batteries, especially those rechargeable batteries containing the Li + ion as conductive salt, especially Li ion batteries, Li air batteries and Li sulfur batteries.
- R1 is fluorine
- R2 is hydrogen or fluorine.
- R1 is fluorine and R2 is hydrogen.
- R3 and R4 are the same or different and are independently selected from the group consisting of fluorine, methyl, ethyl, and methyl and ethyl substituted by at least one fluorine atom. More preferably, R3 and R4 are independently selected from the group consisting of fluorine, methyl, monofluoromethyl, difluoromethyl and trifluoromethyl.
- total electrolyte composition denotes compositions containing at least one Meldrum acid derivative compound of formula (I) of the invention, an electrolyte salt and preferably at least one further solvent and optionally further additives.
- Suitable solvents (which generally are aprotic organic solvents) are known to the expert in the field of Li ion batteries.
- organic carbonates but also lactones, formamides, pyrrolidinones, oxazolidinones, nitroalkanes, N,N-substituted urethanes, sulfo lane, dialkyl sulfoxides, dialkyl sulfites, acetates, nitriles, acetamides, glycol ethers, dioxolanes, dialkyloxyethanes, trifluoroacetamides, are very suitable as solvents.
- the aprotic organic solvent is selected from the group of dialkyl carbonates (which are linear) and alkylene carbonates (which are cyclic), and wherein the term “alkyl” denotes preferably C1 to C4 alkyl, the term “alkylene” denotes preferably C2 to C7 alkylene groups, including a vinylidene group, wherein the alkylene group preferably comprises a bridge of 2 carbon atoms between the oxygen atoms of the —O—C(O)—O— group; ketones, nitriles and formamides.
- Dimethyl formamide, carboxylic acid amides for example, N,N-dimethyl acetamide and N,N-diethyl acetamide, acetone, acetonitrile, linear dialkyl carbonates, e.g. dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate, cyclic alkylene carbonates, e.g. ethylene carbonate, propylene carbonate, and vinylidene carbonate, are suitable solvents.
- Fluorosubstituted compounds different from the compounds of formula (I) mentioned above for example, fluorinated carbonic esters which are selected from the group of fluorosubstituted ethylene carbonates, polyfluorosubstituted dimethyl carbonates, fluorosubstituted ethyl methyl carbonates, and fluorosubstituted diethyl carbonates are other solvents or, preferably, suitable additives or in the electrolytic compositions.
- Preferred fluorosubstituted carbonates are monofluoroethylene carbonate, 4,4-difluoro ethylene carbonate, 4,5-difluoro ethylene carbonate, 4-fluoro-4-methyl ethylene carbonate, 4,5-difluoro-4-methyl ethylene carbonate, 4-fluoro-5-methyl ethylene carbonate, 4,4-difluoro-5-methyl ethylene carbonate, 4-(fluoromethyl)-ethylene carbonate, 4-(difluoromethyl)-ethylene carbonate, 4-(trifluoromethyl)-ethylene carbonate, 4-(fluoromethyl)-4-fluoro ethylene carbonate, 4-(fluoromethyl)-5-fluoro ethylene carbonate, 4-fluoro-4,5-dimethyl ethylene carbonate, 4,5-difluoro-4,5-dimethyl ethylene carbonate, and 4,4-difluoro-5,5-dimethyl ethylene carbonate; dimethyl carbonate derivatives including fluoromethyl methyl carbonate, difluoromethyl methyl
- Suitable additives useful in the electrolyte compositions according to the present invention are those described in WO2007/042471 selected from the group of aromatic compounds consisting of 1-acetoxy-2-fluorobenzene, 1-acetoxy-3-fluorobenzene, 1-acetoxy-4-fluorobenzene, 2-acetoxy-5-fluorobenzyl acetate, 4-acetyl-2,2-difluoro-1,3-benzodioxole, 6-acetyl-2,2,3,3-tetrafluorobenzo-1,4-dioxin, 1-acetyl-3-trifluoromethyl-5-phenylpyrazole, 1-acetyl-5-trifluoromethyl-3-phenylpyrazole, benzotrifluoride, benzoyltrifluoroacetone, 1-benzoyl-3-trifluoromethyl-5-methylpyrazole, 1-benzoyl-5-trifluoromethyl-3-methylpyrazole, 1-benzoyloxy-4-(2,
- the group of compounds having an Si—C bond consisting of bis(pentafluorophenyl)dimethylsilane, 1,2-bis[difluoro(methyl)silyl]ethane, N,O-bis(trimethylsilyl)trifluoroacetamide, N-(t-butyldimethylsilyl)-N-methyltrifluoroacetamide, t-butyldimethylsilyl trifluoromethanesulphonate, 2-dimethylamino-1,3-dimethylimidazolium trimethyldifluorosiliconate, diphenyldifluorosilane,
- the group of compounds having a C ⁇ O bond consisting of bis(1,1,1,3,3,3-hexafluoroprop-2-yl) 2-methylenesuccinate, bis(1,1,1,3,3,3-hexafluoroprop-2-yl)maleate, bis(2,2,2-trifluoroethyl)maleate, bis(perfluorooctyl)fumarate, bis(perfluoroisopropyl)ketone, 2,6-bis(2,2,2-trifluoroacetyl)cyclohexanone, butyl 2,2-difluoroacetate, cyclopropyl 4-fluorophenyl ketone, diethyl perfluoroadipate, N,N-diethyl-2,3,3,3-tetrafluoropropionamide,
- the solvent may also additionally contain benzene, fluorobenzene, toluene, trifluorotoluene, xylene or cyclohexane.
- difluoroacetophenone encompasses the isomers with the fluorine substitution in the 2,3-, 2,4-, 2,5-, 2,6-, 3,4- and 3,5-position on the aromatic ring.
- fluorobenzophenone encompasses in particular the isomers 2-fluorobenzophenone and 4-fluorobenzophenone.
- difluorobenzophenone encompasses the isomers with the fluorine substitution in the 2,3′-, 2,3-, 2,4′-, 2,4-, 2,5-, 2,6-, 3,3′-, 3,4′-, 3,4-, 3,5- and 4,4′-position.
- fluorophenylacetonitrile encompasses the isomers with the fluorine substitution in the 2-, 3- and 4-position.
- the compounds can be synthesized in a known manner and are also commercially available, for example from ABCR GmbH & Co. KG, Düsseldorf, Germany.
- Preferred fluorinated organic compounds useful as solvents or, preferably, as solvent additives in the electrolyte compositions are selected from the group of fluorosubstituted carboxylic acid esters, fluorosubstituted carboxylic acid amides, fluorosubstituted fluorinated ethers, fluorosubstituted carbamates, fluorosubstituted cyclic carbonates, fluorosubstituted acyclic carbonates, fluorosubstituted phosphites, fluorosubstituted phosphoranes, fluorosubstituted phosphoric acid esters, fluorosubstituted phosphonic acid esters and saturated or unsaturated fluorosubstituted heterocycles.
- Suitable fluorinated ethers applicable as solvent or additional additive in the electrolytic compositions are for example those as described in U.S. Pat. No. 5,916,708, namely partially fluorinated ethers of formula (A) RO—[(CH 2 ) m O] n —CF 2 —CFH—X (A) wherein R is a linear alkyl group with 1 to 10 C atoms or a branched alkyl group with 3 to 10 C atoms, X is fluorine, chlorine or a perfluoroalkyl group with 1 to 6 C atoms which groups may include ether oxygen, m is an integer of 2 to 6 and n is an integer of 1 to 8, and/or of formula (II) X—CFH—CF 2 O—[(CH 2 ) m O] n —CF 2 —CFH—X (II) wherein X, m and n have the meaning given above.
- Partially fluorinated carbamates suitable as solvent or additional additives are for example those described in U.S. Pat. No. 6,159,640, namely compounds of the formula R 1 R 2 N—C(O)OR 3 wherein R 1 and R 2 independently are the same or different, and are linear C1-C6-alkyl, branched C3-C6-alkyl, C3-C7-cycloalkyl, or R 1 and R 2 are connected directly or via one or more additional N and/or O atoms forming a ring with 3 to 7 members.
- N atoms in the ring are saturated with C1 to C3 alkyl groups, and additionally, the carbon atoms of the ring may be substituted by C1 to C3 alkyl groups.
- R 1 and R 2 one or more hydrogen atoms may be substituted by fluorine atoms.
- R 3 is a partially fluorinated or perfluorinated linear or branched alkyl group with 1 to 6 or, respectively, 3 to 6 carbon atoms, or a partially or perfluorinated cycloalkyl group with 3 to 7 C atoms, which may be substituted by one or more C1 to C6 alkyl groups.
- Fluorinated acetamides suitable as solvent or additional solvent additive are for example those described U.S. Pat. No. 6,489,064, namely partially fluorinated amide corresponding to formula R 1 CO—NR 2 R 3 wherein R 1 is a linear C1-C6 alkyl group in which at least one hydrogen atom is replaced by fluorine, or a branched C3-C6 alkyl group in which at least one hydrogen atom is replaced by fluorine, or a C3-C7 cycloalkyl group optionally substituted one or more times by a linear C1-C6 alkyl group or branched C3-C6 alkyl group or both in which at least one hydrogen atom of the cycloalkyl group or the optional linear or branched alkyl substituent or both is replaced by fluorine, and R 2 and R 3 independently represent an identical or different linear C1-C6 alkyl group, a branched C3-C6 alkyl group or a C3-C7
- Partially fluorinated esters suitable as solvent or solvent additive are for example those described in U.S. Pat. No. 6,677,085 partially fluorinated compound derived from a diol corresponding to the formula R 1 CO—O—[CHR 3 (CH 2 ) m 'O] n —R 2 wherein R 1 is a (C1-C8) alkyl group or a (C3-C8) cycloalkyl group, wherein each of said groups is partially fluorinated or perfluorinated so that at least one hydrogen atom of the group is replaced by fluorine; R 2 is a (C1-C8) alkyl carbonyl or (C3-C8) cycloalkyl carbonyl group, wherein said alkylcarbonyl or cycloalkylcarbonyl group may optionally be partially fluorinated or perfluorinated; R 3 is a hydrogen atom or a (C1-C8) alkyl or (C3-C8) cycloalky
- the electrolyte composition further to the at least one compound of formula (I), comprises at least one dissolved electrolyte salt.
- Such salts have the general formula M a A b .
- M is a metal cation, and A is an anion.
- the overall charge of the salt M a A b is 0.
- M is preferably selected from Li + and NR 4 + .
- Preferred anions are PF 6 ⁇ , PO 2 F 2 ⁇ , AsF 6 ⁇ , BF 4 ⁇ , ClO 4 ⁇ , N(CF 3 SO 2 ) 2 ⁇ and N(i-C 3 F 7 SO 2 ) 2 ⁇ .
- M is Li + .
- M is Li + and the solution comprises at least one electrolyte salt selected from the group consisting of LiBF 4 , LiClO 4 , LiAsF 6 , LiPF 6 , LiPO 2 F 2 , LiN(CF 3 SO 2 ) 2 and LiN(i-C 3 F 7 SO 2 ) 2 .
- Lithium bis(oxalato)borate can be applied as an additional additive.
- the concentration of the electrolyte salt is preferably 1 ⁇ 0.1 molar.
- the electrolyte composition may comprise LiPF 6 and LiPO 2 F 2 .
- LiPO 2 F 2 is the only electrolyte salt, its concentration in the electrolyte composition is, as mentioned, preferably 1 ⁇ 0.1 molar. If LiPO 2 F 2 is applied as an additive together with another electrolyte salt, especially together with LiPF 6 , the concentration of LiPO 2 F 2 in the electrolyte composition preferably is equal to or greater than 0.1% by weight, more preferably equal to or greater than 0.5% by weight; preferably, its concentration is equal to or lower than 10% by weight, more preferably, equal to or lower than 5% by weight when the total electrolyte composition including electrolyte salt, solvent and additives is set as 100% by weight.
- Another aspect of the present invention concerns solvent compositions for lithium ion batteries, lithium air batteries or lithium sulfur batteries, containing at least one solvent for lithium ion batteries lithium air batteries or lithium sulfur batteries, and further containing at least one fluorinated derivative of Meldrum's acid having the formula (I)
- R1 to R4 independently denote hydrogen, halogen, or linear or branched alkyl group optionally substituted by one or more halogen atoms; provided that at least one of the R1 to R4 is fluorine or fluorinated substituent; and at least one solvent suitable as solvent in Li ion batteries, Li air batteries and Li sulfur batteries; and optionally, at least one solvent additive.
- Preferred solvents and solvent additives are given above.
- the amount of the at least one compound of formula (I) is often equal to or greater than 6% by weight the amount of the at least one compound of formula (I) is often equal to or lower than 12% by weight.
- the amount of additives, if they are present, is preferably equal to or greater than 1% by weight, and is preferably equal to or lower than 12% by weight.
- the balance to 100% by weight is the at least one solvent.
- electrolytic compositions comprising at least one compound of formula (I)
- R1 to R4 independently denote hydrogen, halogen, or linear or branched alkyl group optionally substituted by one or more halogen atoms; provided that at least one of the R1 to R4 is fluorine or fluorinated substituent; an electrolyte salt and optionally at least one further solvent and optionally at least one further additive.
- the electrolyte compositions comprise at least one compound of formula (I), at least one electrolyte salt and at least one solvent and optionally at least one further additive.
- Preferred compounds of formula (I), preferred electrolyte salts, preferred solvents and preferred additives are those given above.
- the compound of formula (I) is contained in the compositions in an amount greater than 0 and preferably equal to or lower than 10% by weight of the total composition.
- the amount of electrolyte salt is preferably in the range 1 ⁇ 0.1 molar.
- the compounds of formula (I) can be introduced into the electrolyte composition separately or in the form of a mixture with other compounds, e.g. as a mixture with a solvent or solvents used in the electrolyte composition or in together with electrolyte salt or other additives.
- Li ion batteries Li air batteries and Li sulfur batteries comprising a solvent composition as outlined above or an electrolyte composition as outlined above.
- 2-fluoromalonic acid diethylester is manufactured from 2-chloromalonic acid diethylester and 1,8-diazabicyclo[5,4,0]undec-7-ene.1,37HF neat at 80° C., as described in example 2 of U.S. Pat. No. 7,145,046.
- the raw product is hydrolyzed, in analogy to example 1 of DE-Offenlegungsschrift 4120704, by contacting it with NaOH in water (concentration of NaOH: 30% by weight). Resulting ethanol is removed by distillation, and the resulting solution is contacted with Lewatit S 100 in the H-form (i.e. comprising acidic H + ).
- the aqueous solution of fluoromalonic acid is mixed with toluene, and at a reduced pressure (400 mbar), a water/toluene mixture is removed.
- fluoromalonic acid (which may be obtained as described in example 1) is reacted with C(O)Cl 2 under cooling to 0° C. in the presence of triethylamine. Diethyl ether is added, solids (hydrochloride) are filtered off, low boiling constituents (mainly diethyl ether) are evaporated, and the resulting 2-fluoro-1,3-dioxane-2,4,6-trione is contacted with SF 4 in an autoclave for 15 hours. Low boiling contents, e.g. SOF 2 , are removed from the autoclave in a vacuum, and 2,2,5-trifluoro-1,3-dioxane-4,6-dione may be isolated.
- SOF 2 low boiling contents
- a first step malonic acid is reacted with C(O)Cl 2 under cooling to 0° C. in the presence of triethylamine. Diethyl ether is added, solids (hydrochloride) are filtered off, low boiling constituents (mainly diethyl ether) are evaporated, and the resulting 1,3-dioxane-2,4,6-trione is suspended in perfluorohexane.
- a gaseous mixture of F 2 in N 2 (volume ratio 1:4) is passed through the suspension at a temperature of approximately ⁇ 20° C. until the molar ratio of F 2 :1,3-dioxane-2,4,6-trione is about 3:1. The flow of F 2 /N 2 gas is stopped, and vacuum is applied to remove low boiling constituents, especially HF.
- a mixture mainly containing 2,2,5-trifluoro-1,3-dioxane-4,6-dione and 2,5,5-trifluoro-1,3-dioxane-4,6-dione is obtained which can be purified and separated for example by preparative chromatography.
- Example 1 is repeated, but instead of acetone, 1,1,1-trifluoroacetone is applied as starting material.
- Example 1 is repeated but instead of acetone, hexafluoroacetone is applied as starting material.
- Example 5 is repeated, but instead of fluoromalonic acid, malonic acid is applied as starting material.
- the electrolyte compositions are prepared by mixing appropriate amounts of the compound or compounds of formula (I), the solvent or solvents, the electrolyte salt and additives if applied in a vessel which is dried beforehand and through which dry N 2 is passed to prevent an atmosphere which is dry and free of oxygen.
Abstract
Description
wherein R1 and R2 independently denote hydrogen, halogen, or linear or branched alkyl group optionally substituted by one or more halogen atoms; and
wherein R3 and R4 independently denote hydrogen, halogen, or linear or branched alkyl group optionally substituted by one or more halogen atom;
provided that at least one of the R1 to R4 is fluorine or fluorinated substituent.
wherein R1 to R4 independently denote hydrogen, halogen, or linear or branched alkyl group optionally substituted by one or more halogen atoms; provided that at least one of the R1 to R4 is fluorine or fluorinated substituent, as a solvent or, preferably, as an additive solvents or electrolyte compositions useful for rechargeable batteries, especially those rechargeable batteries containing the Li+ ion as conductive salt, especially Li ion batteries, Li air batteries and Li sulfur batteries.
RO—[(CH2)mO]n—CF2—CFH—X (A)
wherein
R is a linear alkyl group with 1 to 10 C atoms or a branched alkyl group with 3 to 10 C atoms,
X is fluorine, chlorine or a perfluoroalkyl group with 1 to 6 C atoms which groups may include ether oxygen,
m is an integer of 2 to 6 and
n is an integer of 1 to 8,
and/or of formula (II)
X—CFH—CF2O—[(CH2)mO]n—CF2—CFH—X (II)
wherein
X, m and n have the meaning given above.
wherein R1 to R4 independently denote hydrogen, halogen, or linear or branched alkyl group optionally substituted by one or more halogen atoms; provided that at least one of the R1 to R4 is fluorine or fluorinated substituent; and at least one solvent suitable as solvent in Li ion batteries, Li air batteries and Li sulfur batteries; and optionally, at least one solvent additive. Preferred solvents and solvent additives are given above. In the solvent compositions, the amount of the at least one compound of formula (I) is often equal to or greater than 6% by weight the amount of the at least one compound of formula (I) is often equal to or lower than 12% by weight. The amount of additives, if they are present, is preferably equal to or greater than 1% by weight, and is preferably equal to or lower than 12% by weight. The balance to 100% by weight is the at least one solvent.
wherein R1 to R4 independently denote hydrogen, halogen, or linear or branched alkyl group optionally substituted by one or more halogen atoms; provided that at least one of the R1 to R4 is fluorine or fluorinated substituent; an electrolyte salt and optionally at least one further solvent and optionally at least one further additive. Preferably, the electrolyte compositions comprise at least one compound of formula (I), at least one electrolyte salt and at least one solvent and optionally at least one further additive. Preferred compounds of formula (I), preferred electrolyte salts, preferred solvents and preferred additives are those given above.
Solvent | Further | ||
[balance to | additive; | ||
Compound of formula (I); | 100% | Electrolyte salt; | amount [% |
amount [% by weight] | by weight] | amount [mol/l] | by weight] |
(I-1); 3 | EC | 1 | — |
(I-1I); 3 | EC | 1 | — |
(I-1II); 3 | EC | 1 | — |
(I-1V); 3 | EC/ | 1 | — |
(I-1); 3 | EC/PC | 1 | F1EC; 2 |
vol/vol 1:1 | |||
(I-1I); 3 | EC/PC | 1 | LiPOF; 1 |
vol/vol 1:1 | |||
(I-1II); 3 | EC/PC | 1 | — |
vol/vol 1:1 | |||
(I-1V); 3 | EC/PC | 1 | — |
vol/vol 1:1 | |||
(I-1); 3 | EC/DMC | 1 | F1EC; 2 |
vol/vol 1:1 | |||
(I-1I); 3 | EC/DMC | 1 | LiPOF; 1 |
vol/vol 1:1 | |||
(I-1II); 3 | EC/DMC | 1 | — |
vol/vol 1:1 | |||
(I-1V); 3 | DMC | 1 | — |
(I-1); 1.5; (I-2); 1.5; | EC/PC | 1 | — |
vol/vol 1:1 | |||
2,2-bistrifluoromethyl-1,3- | EC/PC | 1 | — |
dioxane-4,6-dione; 3 | vol/vol 1:1 | ||
2-methyl-2-trifluoromethyl- | EC/PC | 1 | — |
1,3-dioxane-4,6-dione; 3 | vol/vol 1:1 | ||
Abbreviations: | |||
EC = Ethylene carbonate | |||
DMC = Dimethyl carbonate | |||
PC = Propylene carbonate | |||
F1EC = fluoroethylene carbonate | |||
LiPOF = LiPO2F2 |
Claims (12)
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PCT/EP2012/073424 WO2013079397A1 (en) | 2011-11-30 | 2012-11-23 | Fluorinated derivatives of meldrum's acid, a method for the preparation of the same, and their use as a solvent additive |
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JP (2) | JP2015505825A (en) |
KR (2) | KR20140106602A (en) |
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KR20140106602A (en) * | 2011-11-30 | 2014-09-03 | 솔베이(소시에떼아노님) | Fluorinated derivatives of meldrum's acid, a method for the preparation of the same, and their use as a solvent additive |
JP6079264B2 (en) * | 2012-01-25 | 2017-02-15 | 三菱化学株式会社 | Non-aqueous electrolyte and non-aqueous electrolyte secondary battery using the same |
JP6772834B2 (en) * | 2014-09-30 | 2020-10-21 | 三菱ケミカル株式会社 | Non-aqueous electrolyte solution and non-aqueous electrolyte solution secondary battery using it |
CN108864035A (en) * | 2018-06-15 | 2018-11-23 | 浙江巨化技术中心有限公司 | A kind of synthetic method of perhalogeno heterocycloalkane |
CN108623556A (en) * | 2018-06-15 | 2018-10-09 | 浙江巨化技术中心有限公司 | A kind of synthetic method of perhalogeno dioxane alkane |
WO2020085811A1 (en) * | 2018-10-26 | 2020-04-30 | 주식회사 엘지화학 | Lithium-sulfur secondary battery |
IT201900003241A1 (en) | 2019-03-06 | 2020-09-06 | Eni Spa | CONJUGATED POLYMERS OF BENZODITHIOPHEN AND ORGANIC DEVICES CONTAINING THEM |
CN112701349B (en) * | 2020-12-28 | 2022-07-12 | 宁德新能源科技有限公司 | Electrolyte solution, electrochemical device and electronic apparatus including the same |
CN113258137B (en) * | 2021-05-07 | 2022-05-10 | 厦门大学 | Electrolyte additive for improving electrochemical performance of lithium air battery |
KR20220157007A (en) * | 2021-05-20 | 2022-11-29 | 주식회사 엘지에너지솔루션 | Electrolyte for lithium-sulfur secondary battery and lithium-sulfur secondary battery comprising the same |
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JP2015505825A (en) | 2015-02-26 |
EP2785703A1 (en) | 2014-10-08 |
KR20190075162A (en) | 2019-06-28 |
CN104080780B (en) | 2018-04-13 |
EP2785703B1 (en) | 2017-01-11 |
KR20140106602A (en) | 2014-09-03 |
JP2018135336A (en) | 2018-08-30 |
WO2013079397A1 (en) | 2013-06-06 |
CN104080780A (en) | 2014-10-01 |
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US20140322618A1 (en) | 2014-10-30 |
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